== sanity test 184c: Concurrent write and layout swap ==== 09:03:20 (1788699800) 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 1.39044 s, 15.8 MB/s 56+0 records in 56+0 records out 58720256 bytes (59 MB, 56 MiB) copied, 3.52847 s, 16.6 MB/s ref file size: ref1(22020096), ref2(58720256) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 1.93056 s, 11.4 MB/s Copied 1703936 bytes before swapping layout...